Weight of interceptors for Fault tolerance (when using annotations) - defined in FaultTolerance:

This means that if a method has a fallback and a retry, the fallback interceptor is called first, retry second. In case the target method fails, it would first be retried, and then a fallback would be called if all retries fail.

Retry can have named instances (either from configuration of from custom Provider). Each such instance can have a different configuration and can be references from annotations. When used with @FtRetry, a named instance is located, and if not present, a custom instance is created based on the annotation setup.

Bulkhead can have named instances (either from configuration of from custom Provider). Each such instance can have a different configuration and can be references from annotations. When used with @FtBulkhead, a named instance is located, and if not present, a custom instance is created based on the annotation setup.

CircuitBreaker can have named instances (either from configuration of from custom Provider). Each such instance can have a different configuration and can be references from annotations. When used with @FtCircuitBreaker, a named instance is located, and if not present, a custom instance is created based on the annotation setup.

@FtAsync will run the method in an executor service, and wait for its completion. The executor can be named (contract of ExecutorService). By default uses a thread per task executor service with virtual threads.

As fallback is a method reference within the same type, it cannot be injected or shared.